Call addCleanup(delete_server) immediately after resize server

addCleanup(delete_server) should be called immediately after
resizing server, otherwize if something goes wrong in the
following steps, the testcase will return without deleting server,
and thus may affect other resize testcases

Change-Id: Iaa51549f169414a24d622d0b31c983c9d0751176
diff --git a/tempest/api/compute/servers/test_server_actions.py b/tempest/api/compute/servers/test_server_actions.py
index 4a5bab5..062e920 100755
--- a/tempest/api/compute/servers/test_server_actions.py
+++ b/tempest/api/compute/servers/test_server_actions.py
@@ -270,6 +270,9 @@
                                            'SHUTOFF')
 
         self.client.resize_server(self.server_id, self.flavor_ref_alt)
+        # NOTE(jlk): Explicitly delete the server to get a new one for later
+        # tests. Avoids resize down race issues.
+        self.addCleanup(self.delete_server, self.server_id)
         waiters.wait_for_server_status(self.client, self.server_id,
                                        'VERIFY_RESIZE')
 
@@ -285,10 +288,6 @@
             # NOTE(mriedem): tearDown requires the server to be started.
             self.client.start_server(self.server_id)
 
-        # NOTE(jlk): Explicitly delete the server to get a new one for later
-        # tests. Avoids resize down race issues.
-        self.addCleanup(self.delete_server, self.server_id)
-
     @test.idempotent_id('1499262a-9328-4eda-9068-db1ac57498d2')
     @testtools.skipUnless(CONF.compute_feature_enabled.resize,
                           'Resize not available.')
@@ -309,6 +308,9 @@
         # values after a resize is reverted
 
         self.client.resize_server(self.server_id, self.flavor_ref_alt)
+        # NOTE(zhufl): Explicitly delete the server to get a new one for later
+        # tests. Avoids resize down race issues.
+        self.addCleanup(self.delete_server, self.server_id)
         waiters.wait_for_server_status(self.client, self.server_id,
                                        'VERIFY_RESIZE')